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Finding the Fourth Proportional to 103,563.81, 155,345.72 and 32,483.88

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Solution

The fourth proportional to 103,563.81, 155,345.72 and 32,483.88 is: 48,725.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,563.81 : 155,345.72 = 32,483.88 : x
  2. Step 2: Convert to fraction form
    103,563.81/155,345.72 = 32,483.88/x
  3. Step 3: Cross multiply
    103,563.81x = 155,345.72 × 32,483.88
  4. Step 4: Simplify right side
    103,563.81x = 5,046,231,564.57
  5. Step 5: Solve for x
    x = 5,046,231,564.57/103,563.81
  6. Step 6: Final answer
    x = 48,725.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.